Nokia Exam 4A0-205 Topic 2 Question 35 Discussion

Actual exam question for Nokia's 4A0-205 exam

Question #: 35
Topic #: 2

How does a Raman pump work in the 1830 specific implementation?

AThe amplification is done simultaneously for all channels as they enter the board.

BAs the incoming signal power increase, the gain of the amplifier is reduced.

CThe pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node.

DThe pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.

Show Suggested Answer

Suggested Answer: D

In Raman amplification, a pump laser is used to excite the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. In the 1830 specific implementation, the pump laser is typically a high-power laser that is launched into the fiber in the opposite direction to the signal. The pump light interacts with the Raman-active molecules in the fiber, which then amplifies the signal light as it travels in the opposite direction. This allows the Raman pump to provide a gain that increases with distance, which can be used to compensate for the loss of signal power as it travels through the fiber.

by Caitlin at Aug 22, 2024, 09:56 AM

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Marshall

4 months ago

D, definitely D. Although, I do wonder if the 1830 implementation is some sort of ancient technology. *chuckles*

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Caprice

3 months ago

B) As the incoming signal power increase, the gain of the amplifier is reduced.

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Herman

4 months ago

D) The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.

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Stevie

4 months ago

C) The pump light travels in the same direction of the signal, amplifying it while it flows in the fiber towards the following node.

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Samira

4 months ago

I'm not sure, but I think the answer might be A, where amplification is done simultaneously for all channels.

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Dallas

4 months ago

I believe the answer is D, as the pump light travels in the opposite direction of the signal.

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Eleonore

4 months ago

D is the way to go, no doubt. The pump light traveling in the opposite direction just makes more sense for amplification.

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Anisha

4 months ago

I agree with Meghann, because the pump light travels in the same direction as the signal.

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Willard

4 months ago

Wait, is this a trick question? I'm going to go with D, but part of me feels like there's a catch.

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Kirk

3 months ago

Bettina: Yes, that's correct. It helps amplify the signal as it travels towards the following node.

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Karl

3 months ago

So, the pump light amplifies the signal as it arrives from the adjacent node?

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Bettina

4 months ago

I agree, that's how a Raman pump works in the 1830 specific implementation.

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Makeda

4 months ago

I think the answer is D, the pump light travels in the opposite direction of the signal to be amplified.

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Jennifer

5 months ago

Hmm, I'm torn between C and D. I guess I'll go with D, since it seems more intuitive for the pump light to travel against the signal.

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Fatima

5 months ago

C sounds good, but D makes more sense to me. The pump light going in the opposite direction seems more logical for amplification.

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Dottie

4 months ago

I agree, D is the correct answer. The pump light traveling in the opposite direction helps amplify the signal effectively.

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Karima

4 months ago

C sounds good, but D makes more sense to me. The pump light going in the opposite direction seems more logical for amplification.

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Meghann

5 months ago

I think the answer is C.

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Deane

5 months ago

I think the correct answer is D. The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.

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Vallie

4 months ago

That's correct! The pump light traveling in the opposite direction helps amplify the signal effectively.

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Robt

4 months ago

I think the correct answer is D. The pump light travels in the opposite direction of the signal to be amplified, amplifying it while it arrives from the adjacent node.

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